Dongfeng Tianjin 15 Cubic Meters Combination High-Pressure Sewer Jetting & Vacuum Truck | DFAC 4x2 Combination Unit – 15 Cubic Meters Capacity (6 Cubic Meters Fresh Water + 9 Cubic Meters Waste)
I. Product Introduction
This Dongfeng Tianjin 15 Cubic Meters Combination High-Pressure Sewer Jetting & Vacuum Truck is a versatile and powerful municipal sanitation vehicle engineered for professional sewer cleaning and sludge removal operations. Built on the reliable D530 semi-crew cab chassis with 4,700 mm wheelbase, this truck integrates high-performance water jetting and vacuum suction capabilities in a single durable unit. Designed for urban drainage maintenance, industrial wastewater treatment, and municipal pipeline cleaning, it features a split-tank design with 6m³ fresh water and 9m³ sludge compartments, interconnected for operational flexibility. The advanced power take-off system allows simultaneous jetting and suction without cab entry/exit, making it an ideal choice for municipal authorities, environmental contractors, and pipeline maintenance companies seeking efficient sewer cleaning equipment for 800-1200mm diameter pipelines, storm drain cleaning, and catch basin maintenance.
II. Core Specifications
Chassis Model: Dongfeng Tianjin D530 Semi-Crew Cab Standard Top – featuring air conditioning and central control for operator comfort
Wheelbase: 4,700 mm – optimized for vehicle stability and urban maneuverability on narrow streets
Engine: B6.2NS6B230 Diesel Engine with U-type aftertreatment – reliable power output meeting emission standards
Transmission: 8JS95E-C Gearbox – ratio 10.36/0.79 for versatile power delivery in various driving conditions
Front/Rear Axles: 4.5T / 9T Single Reduction – balanced load distribution for heavy-duty applications
Suspension: Leaf Spring 8/10+8 – durable ride quality for off-road job sites
Frame: 250×80×7+4 mm reinforced chassis frame – structural integrity for heavy loads
Fuel Tank: 160 Liters – adequate capacity for extended field operations
Final Drive Ratio: 5.286 – optimized torque delivery for suction tasks
Tires: 10.00R20 18PR – heavy-duty radial tires for load-bearing capacity
Total Tank Capacity: 15 Cubic Meters ( 6 Cubic Meters Water Tank + 9 Cubic Meters Sludge Tank ) with interconnection valve for flexible water-to-waste ratios
Tank Thickness: 6 mm shell, 8 mm heads – reinforced tank durability against internal pressure
High-Pressure Pump: PF 330L High-Pressure Pump – 330 L/min flow, 160 bar pressure for effective water jetting
Pipeline Capacity: Cleans 800-1200 mm diameter municipal pipelines, sewer mains, and industrial drains
Vacuum Pump: SK-30 Water-Circulation Vacuum Pump – 1,800 m³/h flow, 10 meters vertical suction height for sludge extraction
High-Pressure Hose: 60 meters of 22 mm diameter with hydraulic hose reel for extended reach
III. Dimensions, Materials & Design Concept
Overall Dimensions: Built on a 4,700 mm wheelbase with reinforced 250×80×7+4 mm frame, the vehicle provides excellent stability for heavy-duty cleaning operations while maintaining maneuverability in urban environments, construction sites, and residential areas with limited access.
Tank Dimensions & Configuration: The 15-cubic-meter tank features a split-body design with 6m³ fresh water compartment and 9m³ sludge compartment, separated by 8 mm thick heads for compartment separation. The compartments are interconnected via ball valve, allowing operational flexibility to adjust water-to-waste ratios based on specific cleaning requirements for sewer jetting or waste collection. The sludge compartment features a cement discharge port on top and a stainless steel floor lining for enhanced abrasion resistance.
Material: The tank is constructed from 6 mm carbon steel plate with 8 mm thick heads for reinforced durability against corrosive waste. The sludge compartment interior features stainless steel floor lining to resist abrasion from heavy debris, solid waste, and grit. The tank top includes a walkway platform with anti-slip surface for safe access during tank inspection and maintenance.
Design Concept: The design philosophy centers on "Simultaneous Operation with Operator Convenience." The advanced power take-off system with four independent PTO ports allows jetting and suction to operate simultaneously without requiring the operator to exit the cab for gear changes. This innovative design significantly improves on-site efficiency, reduces operator fatigue during extended sewer cleaning operations, and enhances productivity for fleet operators.
IV. Detailed Structure & Component Advantages
Engine: Powered by the B6.2NS6B230 diesel engine with U-type aftertreatment, this vehicle delivers reliable horsepower for demanding suction tasks and high-pressure jetting. The fuel-efficient powerplant meets stringent emission standards while providing excellent fuel economy for fleet operators concerned with operating costs, fuel consumption, and environmental compliance in urban areas.
Transmission: Equipped with an 8JS95E-C gearbox featuring 10.36/0.79 ratio, this truck offers exceptional versatility for diverse driving conditions. The 8-speed transmission provides low-range power for challenging off-road conditions at job sites, landfill locations, and construction zones, while overdrive gearing enables efficient highway travel between project sites, disposal facilities, and service areas.
Front & Rear Axles: The 4.5T front axle and 9T single reduction rear axle are specifically matched to handle the 15-ton payload capacity with ease. This axle configuration ensures optimal weight distribution and vehicle stability during both transit and stationary vacuum extraction operations on uneven terrain at waste treatment plants or industrial facilities.
Frame & Suspension: The 250×80×7+4 mm reinforced frame with 8/10+8 leaf spring suspension provides exceptional durability for heavy-duty applications. The robust chassis construction ensures structural integrity even when operating on rough surfaces at construction sites, landfills, or remote locations, protecting the tank and components from stress and vibration.
Power Take-Off System: The full-power transfer case provides complete power distribution with four independent PTO ports for maximum operational flexibility:
One port for driving the vacuum pump for sludge removal
One port for driving the high-pressure water pump for sewer jetting
Two ports for driving various hydraulic devices ( hydraulic hose reel, hydraulic rear door, etc.)
Pneumatic control allows function switching without cab entry/exit, saving time and effort
Simultaneous operation of jetting and suction functions for maximum productivity during pipeline cleaning
Advanced Filtration Systems:
Custom Oversized Stainless Steel Filter: Protects the vacuum pump from debris, rocks, and solid waste, extending pump service life and reducing maintenance costs
Secondary Cyclone Filtration System: Enhances pump protection by separating solids before they reach the vacuum pump, ensuring reliable performance even with abrasive sludge
Safety Features:
Pneumatically Controlled Anti-Overflow Valve: Mounted on tank top to prevent overfilling during suction operations, enhancing workplace safety and preventing environmental spills
V. Product Features & CLW Group Advantages
High-Performance Dual-Pump System: The combination of a PF 330L high-pressure pump ( 330 L/min flow, 160 bar pressure ) for powerful water jetting to break through tough blockages, tree roots, and grease buildup, and an SK-30 water-circulation vacuum pump ( 1,800 m³/h flow, 10m vertical suction ) ensures thorough cleaning of 800-1200mm diameter municipal pipelines, storm drains, and sewer mains in a single pass. This pump configuration delivers industry-leading performance for sewer cleaning applications, drain maintenance, and emergency response situations.
Operator-Centric Design: The pneumatically controlled PTO system allows operators to switch between or combine jetting and suction functions without leaving the cab – a significant productivity enhancement for extended cleaning operations that reduces downtime, operator fatigue, and improves job site efficiency for municipal crews and contractor teams.
Superior Tank Construction: The 6 mm shell with 8 mm heads provides exceptional durability against internal pressure and waste material corrosion. The stainless steel floor lining in the sludge compartment resists abrasion from heavy debris, grit, and solid waste, significantly extending tank service life compared to standard carbon steel floors and reducing long-term maintenance requirements.
Convenient Operational Features:
Hydraulic Hose Reel: Rear-mounted with 160-degree hydraulic rotation for optimal hose positioning from either side of the vehicle, improving access to manholes and drainage points
60 Meters of φ22mm High-Pressure Hose: Pre-rigged and ready for extended reach sewer cleaning in deep pipelines, long runs, and hard-to-access areas
Tank Top Platform: Safe access for maintenance, tank inspection, and cleaning with anti-slip walkway for operator safety
Cement Discharge Port: Located on sludge tank top for convenient unloading at disposal sites, treatment facilities, and landfills
Interconnected Compartments: Flexible water-to-waste ratio adjustment via interconnection valve for adapting to different cleaning tasks
Stainless Steel Floor Lining: Enhanced abrasion resistance in sludge compartment for long-term durability with abrasive materials
Air Conditioning & Central Control: Standard in D530 cab for operator comfort in all weather conditions, improving productivity during long shifts
CLW Group Advantages: As a premier Chinese special vehicle manufacturer with decades of engineering expertise and ISO 9001 certification, CLW Group offers:
Engineering Excellence: The advanced 4-independent PTO system with pneumatic control is a CLW Group exclusive design, significantly improving operational efficiency and setting our vehicles apart from standard offerings in the sanitation equipment market
Customization Capabilities: We can modify tank splits, pump configurations, hose lengths, reel positions, and accessory packages to meet specific municipal requirements, industrial applications, or contractor preferences for specialized waste handling equipment
Quality Manufacturing: Rigorous ISO 9001 quality control throughout fabrication, from 6-8 mm steel welding to hydraulic system testing and pump calibration, ensuring reliable equipment that performs consistently in demanding field conditions and harsh environments
Integrated Supply Chain: Direct sourcing of genuine components – Dongfeng chassis, B6.2 engines, PF pumps, and SK vacuum pumps – ensures spare parts availability, competitive pricing, warranty coverage, and responsive after-sales support through our global service network
Global Export Experience: Proven track record of exporting sanitation equipment, vacuum trucks, sewer cleaners, and combination units to international markets across Asia, Africa, Middle East, and Latin America, with comprehensive technical documentation, shipping logistics, customs clearance assistance, and responsive customer service for global clients, government tenders, and NGO projects
